Image processing techniques for blind TV ghost cancellation

Abstract

This paper describes a technique to ghosts cancellation without a Ghost Cancellation Reference signal. The existing vertical edges in TV image are used to estimate the channel characteristics. With the estimating results, the coefficients of the equalizer are updated. In this paper, a method to speed up the convergence is given. The equalizer structure for cancelling all kinds of ghosts is discussed too. A new improved solution is achieved by interpreting the TV synchronisation signal as a genuine edge.